____ has been heated discussion over which country bakes the world’ s best pizza: Italy, where pizza began or the US, where it was globalized. 

---You shouldn’t have taken pictures before the carved stones．---____ .

I have reached a point in my life ________ I am supposed to make decisions of my own.

       ,the more quickly he will learn a foreign language.

      takes me several hours      my tasks. Because they are too difficult.